Process of treating gasolene and the like



"UNITED am EPATENT oer-Ice.

uar'rrmw n. alarm, .73., or Rosanna, New Jersey, assmnoa, BY mm:assmnwas, re earn 31 HUNT, reverse, or uotmr xIsco, NEW you PROCESS OFTREATING GASOLENE AND THE LIKE.

No Drawing:

To all whom it concern: 1

Be it known that I, Ma'rrimw D. MANN,

J12, a citizen of the United States, and a resident of Roselle, countyof Union, and State of New Jersey, have invented certain new and usefulImprovements in Processes of Treating Gasole'ne and the like, of whichthe following is a specification. This inyention relates to a process oftreating gasolene and is particularly adapted to.

the treatment of gasolene obtained by cracking; which 001113111115unsaturated hydrocarbou material, such as olefins and the like, in

'which instance a reactive acid extract will be obtained suitable forthe manufacture of alcohols such as are described and claimed in the aplication of Carleton Ellis and Mortimer In the refining of gasoleneobtained cracking, it is usual to mix the gasolene with relativelystrong sulfuric acid. I have found that even if-acid ofno greaterstrength than 1.8 specific gravity is used, considerable polymerizationwill take place and the specific gravit of the; gasolene will beincreased. y invention relates particularly to a method of treating suchgasolene with gradually increasing strengths of sulfuric acid wherebythe increase in specific gravity,

due to polymerization, is held to a minimum. I accomplished this resultby adding to the gasolene a diluent for sulfuric acid, such as water'ora relatively weak acid, retaini'ngthe diluent and thezgasolene in anintimate mixture, as by agitation, and thereafter gradually adding tosuch mixture relatively strong sulfuric acid. 7

It is apparent that the amount and nature of the diluent first added tothe oil, and theamount-of strong acid later added, can be soproportioned that the final strength of acid may be brought to a desiredpoint. If the final strength of acid is relatively high,.polymerizationwill be greater than if the amount of diluent and amount of strongacidused are such that the final strength of acid is relatively low, but ifit is desired to obtain an efiicient yield of acid extract, capable ofconversion into alcohols, I

' have found that good results can be obtained by having. the final acidstrength about 1.8

specific gravity. If the final acid strength gravity, there is decidedpolymerization of "relatively. "dilute acid such as is substantiallygreater than-1.8 specific Cohen, Serial No. 230,680, filed. Apr. 25,1918.

Sp fi n of Letters Patent- Patented Jan. 11, 1921 Application filed m,e, 1918. Serial No. 243,683. 7

the gasoleneand the yield of alcohols from second of which it was not:This is only by way of making my invention clearly underistood and notfor hmitation of the inven- Example 1: About400 allons of'a gasolenefraction boiling mainly under 100- (1.,

but containin \some ortion boilin u to 180 C., were placed in g p v withefiicient agitating gasolene was urton process. To the gasolene in thechurn about 4' gallons of water were added and the mixture was cooleddown to about 15 C. To this-mixture were added about 5% gallons -.ofsulfuric acid of 1.835 speclfie gravity, the addition being carrledoutgradually over a period of about four hours,dur1ng which time theagitation was apparatus;

commued and the temperature maintainedat not over 20 C. After theagitation was completed, the material was allowed to. set

tle for about one-half hour and the acid ex tract withdrawn. Theresidual asolene I showed a specific gravity of 62 The acid extract wasadded to about three times a churn equipped obtained by cracking by theits volume of water and distilled. About 24 gallons of alcohol .wereobtained,

Example 21A like amount of the same gasolene was placed in the sameagitator. 4

gallons of water was mixed with 54 gallons of sulfuric acid of 1.835specific gravity. The acid thus diluted was gradually added to thegasolene over a period of,.about 4. hours, during which time theagitation was continued and the temperature maintained below 20 C. Atthe end of this period the .material was allowed to settle for aboutonehalf hour and the acid extract withdrawn. In this case theresidual-gasolene showed a gpecific gravity of about 58 B., or about 4 7lower than in Example 1. The acid extract *was added to about threetimes its volume of water and when distilled yielded about20-gallons ofalcohol.

- It is apparent that many changes may be made in the process without deart'ing from the spirit 0 my invent-ion. or example,

acid 0t 1.5

specific gravity may be first added to the gaso-lene and then brought upto strength by the use of stronger acid, and various other changes andmodifications may be resorted I claim: 1

1. The process of treating gasolene containing unsaturated hydrocarbonswhich consists in incorporating such asolene with a diluent for sulfuricacid cient to reduce the specific ravity of a given quantity of"sulfuric aci of about 1.835 specific gravity to about 1.8 specificgravity, and gradually adding such quantity of sulfuric acid ofabout1.835 specific gravity.

to-within the scope of my claims.

v 2. The process of treating gasolene containing unsaturatedhydrocarbons which consists in adding water thereto, maintaining thesame in admixed condition therewith by agitation, and adding theretosulfuric acid of about 1.835 specific gravity to the amount of about tentimes the .volume of water used.

3,, The process of treating hydrocarbon material comprising unsaturatedhydrocarbons, which comprises the step of graduall bringing sulfuricacid into contact therewit when in a state of intimate admixture withsubstantial quantities of a diluent for the acid, whi e maintaining thetemperature not above 20 C 4. The rocess of consists in incor cratingsuch gasolene with a diluent for sul uric acid sufiiclent to reduce ,thespecific gravity of a uantity of sulfuric refining gasolene con- '4taming o efins and making reactive acid acid of about 1.835 speol cgravity to about 1.8 specific gravity and; gradually adding suchquantity of sulfuric acid of about 1.835

specific gravity, while maintaining the temperture at not over 20 C.

In testimony that I claim the fore oing, I have hereto set iny hand,this 5th (imy of July, 1918. l V

MATTHEW D. MANN, JR.

